Fog in Lerwick, Shetland

daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. August typically brings about 21 hours of dense fog here (10-year average).

Measured at Sumburgh Airport (EGPB). This station has climatology and live observations only.

Measuring station

stationairportfog hours/yrforecast
EGPBSumburgh Airport146 h/yrclimatology

Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.

When Lerwick, Shetland fogs in

Fog here concentrates in June and July — about 146 hours in a typical year at EGPB, usually lasting ~2 h once it forms. Hour-by-hour patterns, live conditions and the forecast strip live on the EGPB station page.

Fog season

January: ~1 hJanFebruary: ~1 hFebMarch: ~7 hMarApril: ~6 hAprMay: ~24 hMayJune: ~32 hJunJuly: ~28 hJulAugust: ~21 hAugSeptember: ~14 hSepOctober: ~6 hOctNovember: ~4 hNovDecember: ~0 hDec
Fog season runs May through September, peaking in June; fog here can hit at any hour of the day; a typical event lasts about 2 hours once it forms local time · 10-yr average

Machine access: data.json · llms.txt · forecast verification. Not for operational use.